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Golf club headRelated Patent Categories: Games Using Tangible Projectile, Golf, Club Or Club Support, Head, Reduced Air ResistanceGolf club head description/claimsThe Patent Description & Claims data below is from USPTO Patent Application 20060100027, Golf club head. Brief Patent Description - Full Patent Description - Patent Application Claims
FIELD OF THE INVENTION [0001] This invention relates to golf clubs. This invention relates to golf clubs for striking golf balls that are resting in sand or resting in other incoherent materials. BACKGROUND OF THE INVENTION [0002] The present invention relates to a golf club head and more particularly to a golf club head such as a sand wedge, a chipping wedge, or other type of golf club that is adapted to be capable of improving a golfer's ability to effectively strike balls that are located on sand, soft dirt, or other non-coherent material. [0003] The game of golf uses golf courses that are constructed with a variety of features that are designed to test the ability of a golfer to cope with difficult circumstances. One such feature is the sand trap. With respect to sand traps, the most desired outcome for a golfer is to display such skills as are sufficient to avoid having the golf ball come to rest within the sand trap. However, in spite of a golfer's best efforts the golf ball may indeed fall within a sand trap. In such circumstances, the most desired outcome is for the golfer to be able to strike the ball in such a way as to cause the ball to leave the sand trap with a single strike. This desired outcome is not easy to achieve because sand is not a coherent surface and the ball is likely deform the surface of the sand with the ball coming to rest with a portion of the ball somewhat buried below the surface of the sand. [0004] FIG. 1A is typical of a prior art golf club head that is used for striking balls that are in sand traps, that is, sand wedge golf clubs. Chipping wedge golf clubs and other types of golf clubs are similar. Golf club head 10 has striking surface 12, which is also referred to as a "face" and which can be considered to be the front surface of the golf club head since this is the surface that leads in a forward direction as a golf club is swung to strike a ball. Striking surface 12 is a substantially planar surface that typically has score lines 14. Score lines 14 are shallow indentations that are provided to produce improved control of golf balls that are struck with golf club head 10. Striking surface 12 has a so-called "sweet spot" portion 16 that is the desired location for the golf club head 10 to strike ball 28 and that is typically a region that is more or less within the area of the center of striking surface 12. Other parts of golf club head 10 will be mentioned for convenience in discussion of other figures. Hosel 18 is the portion of golf club head 10 that connects golf club head 10 to the shaft (not shown) of the golf club. Heel 20 is the lower rear corner of golf club head 10 near hosel 18. Sole portion 22 is that portion of golf club head 10 which is along the lower edge of golf club head 10. Crown portion 24 is that portion of golf club head which is along the upper edge of golf club head 10. Toe 26 is the portion of golf club head 10 that is opposite heel 20, that is, toe 26 is at the lower corner of golf club head 10 that is away from hosel 18. [0005] FIG. 1B is a side view of golf club head 10 along with a golf ball 28 located near sweet spot portion 16. Golf club head 10 has golf club body 30 which provides structure and mass to golf club head 10. Golf club body 30 may be made of a stainless steel casting, or may be made through other construction methods such as through an assembly of different castings, with or without stamped pieces of material attached to the assembly. Mass may be important for golf club 10 since the mass of golf club body 30, along with its velocity when swung, imparts force to golf ball 28. Golf club head 10 has rear surface 32 which is on golf club body 30 as the opposite side of striking surface 12. Rear surface 32 is considered to be "rear" since it is the surface that is trailing as golf club 10 is swung in a forward direction to strike golf ball 28. For the golf club head 10 that is illustrated, golf club body 30 may be different widths, measured through the thickness of golf club body 30 between striking surface 12 and rear surface 32. So measured, golf club body 30 may be wider across the portion near its sole portion 22 than the portion near its crown portion 24 in order to provide a desired mass, center of gravity, and balance for club head 10. Different configurations of golf club heads may be somewhat different from golf club head 10 that is illustrated but these are differences of degree and of design choice while the general principles of golf club head construction are present in different golf club heads. [0006] The direction of forward motion of golf club 10 is indicated in FIG. 1 by forward motion direction arrow 34. [0007] FIG. 2 illustrates golf ball 28 resting on sand 36 as well as illustrates a side view of golf club head 10 in similar orientation to that of the side view of FIG. 1B. In this figure, the surface of sand 36 is indicated by a dashed line. Sand is an example of an incoherent material, that is, a loose material which may be granular or may be wet or moist. Other examples of incoherent materials include loose dirt, dust from ground dirt, loose organic matter such as small pieces of grass, thick mud, and so forth. As illustrated, golf ball 28 is resting partially buried below the surface of sand 36 since golf ball 28 is assumed to have dropped onto sand 36 causing the surface of sand 36, an incoherent material, to be somewhat displaced and deformed by the weight of golf ball 28. [0008] As used in this discussion, incoherent materials are compositions of matter and are not considered to include air or other gases. A liquid could be considered to be an incoherent material for the purposes of this discussion, as would be the case of a golf ball that is resting in shallow water. [0009] It is somewhat problematic for a golfer who uses a prior art golf club to strike golf ball 28 when golf ball 28 is resting partially buried below the surface of sand 36. For the purposes of this discussion, a golf ball 28 shall be considered to be partially buried below the surface of an incoherent material if the incoherent material happens to be water that is sufficiently shallow as to allow a golf ball that is submerged or partially submerged in the water to be struck by a golfer. [0010] The problem arises due to the non-coherent nature of sand 36 or of the other type of incoherent material. A golfer desires that golf club head 10 should strike squarely at golf ball 28, striking at sweet spot portion 16, striking neither too high nor too low on golf club head 10. Such striking is desired in order that golf club 10 impart a desired lift and momentum to cause golf ball 28 to assume an upward and forward trajectory to exit the sand trap. Therefore, a golfer who strikes golf ball in a sand trap may desire to strike golf ball 28 with sole portion 22 entering the sand as striking surface 12 strikes golf ball 28. In other words, it may be desired that sole portion 22 will strike through sand 36. However, sand 36 imposes a greater degree of resistance to forward motion of golf club head 10 as golf club head 10 strikes through sand 36, compared to the resistance to forward motion of golf club head 10 as golf club head 10 strikes through air 38. [0011] The surface of sand 36 is indicated by reference numeral 40. This greater resistance to forward motion of golf club 10 caused by sand 36 causes the golfer's strike at ball 28 to be reduced in control, of reduced strength and momentum, and reduced in follow-through motion of golf club head 10. These reductions result in greater difficulty for the golfer to hit golf ball 10 to the location that the golfer desires to hit golf ball 10. [0012] It is therefore desirable to provide golfers with a golf club head which is an improved golf club head where the improvement results in decreased resistance to golf club head motion caused by sand, dirt, or other incoherent materials as the golf club head strikes through the incoherent materials. SUMMARY OF THE INVENTION [0013] The present invention comprises a golf club head that is adapted to be swung through an incoherent material to strike a golf ball. The golf club head has a body having an aperture. The aperture reduces the resistance of the golf club head to motion through the incoherent material. In an embodiment, the present invention comprises a plurality of apertures that reduce such resistance. BRIEF DESCRIPTION OF THE DRAWINGS [0014] FIG. 1A illustrates a prior art golf club head viewed from its striking surface side. [0015] FIG. 1B illustrates an end view of a prior art golf club viewed from its toe side. [0016] FIG. 2 illustrates an end view of a prior art golf club striking a golf ball that is resting in an incoherent material such as sand. [0017] FIG. 3A illustrates an end view of an embodiment of the present invention. [0018] FIG. 3B illustrates a view of the striking surface of an embodiment of the present invention. [0019] FIG. 3C illustrates a view of the rear surface of an embodiment of the present invention. [0020] FIG. 4A illustrates an end view of another embodiment of the present invention. Continue reading about Golf club head... Full patent description for Golf club head Brief Patent Description - Full Patent Description - Patent Application Claims Click on the above for other options relating to this Golf club head patent application. ###  How KEYWORD MONITOR works... a FREE service from FreshPatents1. Sign up (takes 30 seconds). 2. Fill in the keywords to be monitored. 3. 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